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</div><hr /><div id="intro.posix" class="preface">
  <h1 class="title">简介</h1>
  <p class="para">
   This module contains an interface to those functions defined in
   the IEEE 1003.1 (POSIX.1) standards document which are not
   accessible through other means. 
  </p>
  <div class="warning"><strong class="warning">Warning</strong>
   <p class="para">
    Sensitive data can be retrieved with the POSIX functions, e.g.
    <span class="function"><a href="function.posix-getpwnam.html" class="function">posix_getpwnam()</a></span> and friends. None of the 
    POSIX function perform any kind of access
    checking when <a href="ini.sect.safe-mode.html#ini.safe-mode" class="link">safe mode</a> is enabled.
    It&#039;s therefore <em class="emphasis">strongly</em> advised to
    disable the POSIX extension at all (use
    <em>--disable-posix</em> in your configure line) if you&#039;re
    operating in such an environment.
   </p>
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  <blockquote class="note"><p><strong class="note">Note</strong>: <span class="simpara">此扩展在 Windows 平台上不可用。</span></p></blockquote>
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